Abstract

Many people find the notion of blending humans and nonhumans together to create animals whose brains are composed entirely of human brain cells disturbing. I argue that these moral qualms lack adequate justification. I consider a number of reasons for objecting to the creation of such chimeras and argue that none of these reasons withstand scrutiny. I argue that the only plausible objections to these chimeras would require that they possess morally significant properties that would be lacked by similar, non-chimeric animals, but that there is no good reason to think this would be the case